We use WP Supercache on our site http://www.onedirection.net. We also use a couple of plugins such as WP Minify etc which perform some functions that I think Total Cache does anyway.
We have a CDN in place, and we've spent the last 6 months optimising our page load times as much as possible. We're a content heavy site so our pages will never be the quickest, but we're doing the best we can.
Are there any improvements that we could get from moving over to WP Total Cache?
I've just had a quick read of the specs and noticed the database caching stuff which sounds very interesting.
Eager to know of any speed improvements we could be getting, so appreciate the advise.